Question
What will be the effect of tillage on the thermal
conductivity of soil?Solution
Tillage increases porosity, therefore contact between the soil particles will decrease, which will impact the heat transfer as air will be between the particles which is a bad conductor of heat
P, Q and R can finish a job in 45 days, 60 days and 90 days respectively. P and Q work together for 12 days. How long will R take to finish the leftover...
- Pooja used to solve 36 problems in 72 minutes. After her efficiency decreased by 33.33%, how long will she now take to solve the same number of problems?
(x + 3) workers complete 50% of work in 4 days at 5 hours/day. (x + 1) workers finish the rest in 5 days at 6 hours/day. Find x.
Before servicing, a car runs at a speed of 20 km/hr while after servicing, it runs at a speed of 30 km/h. After servicing the car covers a certain dista...
A group of workers was put on a job. From the second day onwards, 1 worker left work everyday. If no worker was left when 52% of the work gets complete...
Three men and 4 women can do a piece of work in 7 days, whereas 2 men and I woman can do it in 14 days. Seven women will complete the same work in:
- ‘Neha’ can complete a task in 90 days. She worked for 54 days and then left. The rest of the task was completed by ‘Karan’ in 24 days. How much tim...
- X and Y can complete a task together in 24 days, while Y alone takes 48 days to finish it. X worked alone for some days and then Y completed the rest of th...
‘D’ and ‘E’ together can finish a task in 40 days, while ‘E’ and ‘F’ together can finish the same task in 30 days. ‘D’ and ‘E’ t...
'M' alone finishes a project in 30 days. 'M' and 'N' together can complete the same project in 16(2/3) days. How many days would 'N' need to do the proj...
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